Crupi’s seat post clamps are super light and super strong which is all you need is a good seat post clamp.  But there is more... our clamps feature a steel threaded insert for the clamp screw which insures a tight clamp every time and protects the clamp from stripping out due to over tightening.  Made from 6061 Aluminum and available in 2 sizes that fit most race frames.   

• 25.4 (or 1") clamps fit most mini, junior and expert size frames

• 31.8 (or 1-1/4") clamps fit most pro size frames

Crupi Seat clamps - $12.99 each